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Definitions

alter

[awl-ter] / ˈɔl tər /




Usage

What is another way to say alter? To alter is to make some partial change, as in appearance, while still preserving the identity: to alter a dress, as by raising the hem (to change a dress would mean to put on a different one). To change is to make a material difference so that something is distinctly different from what it was: to change one's opinion. 

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The nation’s second-largest school system, with about 390,000 students, faces evolving challenges and uncertainties that could alter the direction of the district for years.

From Los Angeles Times • Apr. 30, 2026

The only tournaments where he can significantly alter and improve his already stellar career are done and dusted three months from now.

From BBC • Apr. 29, 2026

The Gulf country said in a statement that it would exit the cartel effective May 1, adding that the decision wouldn’t alter its “commitment to global market stability,” state-run news agency WAM reported.

From Barron's • Apr. 28, 2026

Microbial invasions often receive far less attention than invasive plants, insects, or animals, yet they can significantly alter ecosystems.

From Science Daily • Apr. 24, 2026

Which meant that over the years, the attempts to alter history had become increasingly more organized and better planned, which made Butterflies that much harder to spot.

From "Glitch" by Laura Martin




Vocabulary lists containing alter